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Ch. 4 & Ch. 6

Horizontales
Each horizontal row of the periodic table
Generally has properties that are similar to those of metals and nonmetals
All elements are composed of tiny indivisible particles called atoms.
The ability of an atom of an element to attract electrons when the atom is in a compound
When elements are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties.
The nonmetals of group 7A
In atoms, the highest occupied S sublevel and a nearby D sublevel contain electrons
Elements that display a wide range of physical and chemical propeerties
A weighted average mass of the atoms in a naturally occurring sample of the element.
The smallest particle of an element that retains its identity in a chemical reaction.
Glowing beam that traveled from the cathode to the anode
The elements in group 8A of the periodic table
Subatomic particles with no charge but with a mass nearly equal to that of a proton
Poor conductors of heat and electrical current
The tiny central core of an atom and is composed of protons and neutrons
Verticales
The group 1A elements
Charged subatomic particles
In atoms, the highest occupied S sublevel and a nearby F sublevel genrally contain electrons
The group 2A elements
One-twelve the mass of a carbon -12 atom
Atoms that have the same number of protons but different numbers of neutrons
Total number of protons and neutrons in an atom
The energy required to remove an electron from an atom
An arrangement of elements in which the elements are separated into groups base on a set of repeating properties.
Number of protons in the nucleus of an atom of that element
One half of the distance between the nuclei of two atoms of the same element when the atoms are joined
Good conductors of heat and electric current
Charged subatomic particles
An ion with a negative change
An ion with a positive charge
Each vertical column of the periodic table